To make the spiced walnuts, heat the honey and olive oil in a small skillet over medium-high heat. Stir in the allspice and cumin. Add the sugar, a fat pinch of sea salt, and several grinds of pepper. Dribble a tiny bit of water into the center of the skillet to encourage the sugar to melt. As soon as the mixture is bubbling, turn off the heat and add the walnuts. Stir well, breaking up any clumps, until the walnuts all have a little sugar on them. Transfer to a plate to cool.